message stringlengths 2 433k | message_type stringclasses 2
values | message_id int64 0 1 | conversation_id int64 113 108k | cluster float64 12 12 | __index_level_0__ int64 226 217k |
|---|---|---|---|---|---|
Provide tags and a correct Python 3 solution for this coding contest problem.
Greg has an array a = a1, a2, ..., an and m operations. Each operation looks as: li, ri, di, (1 ≤ li ≤ ri ≤ n). To apply operation i to the array means to increase all array elements with numbers li, li + 1, ..., ri by value di.
Greg wrote ... | instruction | 0 | 17,095 | 12 | 34,190 |
Tags: data structures, implementation
Correct Solution:
```
import sys
input = sys.stdin.readline
sys.setrecursionlimit(10**6)
############ ---- Input Functions ---- ############
def in_int():
return (int(input()))
def in_list():
return (list(map(int, input().split())))
def in_str():
s = input()
r... | output | 1 | 17,095 | 12 | 34,191 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Greg has an array a = a1, a2, ..., an and m operations. Each operation looks as: li, ri, di, (1 ≤ li ≤ ri ≤ n). To apply operation i to the array means to increase all array elements with numbers li, li + 1, ..., ri by value di.
Greg wrote ... | instruction | 0 | 17,096 | 12 | 34,192 |
Tags: data structures, implementation
Correct Solution:
```
import sys
n, m, k = [int(x) for x in sys.stdin.readline().strip().split(" ")]
arr = [int(x) for x in sys.stdin.readline().strip().split(" ")]
delta = []
delta.append(arr[0])
for i in range(1, n):
delta.append(arr[i] - arr[i - 1])
ops = []
for i in ran... | output | 1 | 17,096 | 12 | 34,193 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Greg has an array a = a1, a2, ..., an and m operations. Each operation looks as: li, ri, di, (1 ≤ li ≤ ri ≤ n). To apply operation i to the array means to increase all array elements with numbers li, li + 1, ..., ri by value di.
Greg wrote ... | instruction | 0 | 17,097 | 12 | 34,194 |
Tags: data structures, implementation
Correct Solution:
```
import sys
n,m,k=map(int,sys.stdin.readline().split())
a=list(map(int,sys.stdin.readline().split()))
s=sum(a)
m1=[]
for i in range(m):
g=list(map(int,sys.stdin.readline().split()))
m1.append(g)
k1=[]
for i in range(k):
g=list(map(int,sys.stdin.read... | output | 1 | 17,097 | 12 | 34,195 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Greg has an array a = a1, a2, ..., an and m operations. Each operation looks as: li, ri, di, (1 ≤ li ≤ ri ≤ n). To apply operation i to the array means to increase all array elements with numbers li, li + 1, ..., ri by value di.
Greg wrote ... | instruction | 0 | 17,098 | 12 | 34,196 |
Tags: data structures, implementation
Correct Solution:
```
from sys import stdin,stdout
nmbr=lambda:int(stdin.readline())
lst = lambda: list(map(int,stdin.readline().split()))
for _ in range(1):#nmbr():
n,m,q=lst()
a=lst()
queries=[lst() for _ in range(m)]
mp=[0]*(2+m)
for i in range(q):
l,... | output | 1 | 17,098 | 12 | 34,197 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Greg has an array a = a1, a2, ..., an and m operations. Each operation looks as: li, ri, di, (1 ≤ li ≤ ri ≤ n). To apply operation i to the array means to increase all array elements with numbers li, li + 1, ..., ri by value di.
Greg wrote ... | instruction | 0 | 17,099 | 12 | 34,198 |
Tags: data structures, implementation
Correct Solution:
```
import sys
def read(line):
return [int(c) for c in line.strip().split()]
def main():
test = sys.stdin.readlines()
n, m, k = read(test[0])
array = read(test[1])
ops = [read(test[2+j]) for j in range(m)]
l, r, d = [], [], []
for l... | output | 1 | 17,099 | 12 | 34,199 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Greg has an array a = a1, a2, ..., an and m operations. Each operation looks as: li, ri, di, (1 ≤ li ≤ ri ≤ n). To apply operation i to the array means to increase all array elements with numbers li, li + 1, ..., ri by value di.
Greg wrote ... | instruction | 0 | 17,100 | 12 | 34,200 |
Tags: data structures, implementation
Correct Solution:
```
#!/usr/bin/env python3
# created : 2020. 8. 19. 00:08
import os
from sys import stdin, stdout
def solve(tc):
n, m, k = map(int, stdin.readline().split())
seq = list(map(int, stdin.readline().split()))
ops = []
for i in range(m):
ops... | output | 1 | 17,100 | 12 | 34,201 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Greg has an array a = a1, a2, ..., an and m operations. Each operation looks as: li, ri, di, (1 ≤ li ≤ ri ≤ n). To apply operation i to the array means to increase all array elements with numbers li, li + 1, ..., ri by value di.
Greg wrote ... | instruction | 0 | 17,101 | 12 | 34,202 |
Tags: data structures, implementation
Correct Solution:
```
import sys
input = sys.stdin.readline
n, m, k = map(int, input().split())
a = list(map(int, input().split()))
l = []
r = []
d = []
# храним операции
for i in range(m):
lx, rx, dx = map(int, input().split())
l.append(lx)
r.append(rx)
d.append... | output | 1 | 17,101 | 12 | 34,203 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Greg has an array a = a1, a2, ..., an and m operations. Each operation looks as: li, ri, di, (1 ≤ li ≤ ri ≤ n). To apply operation i to the array means to increase all array elements with numbers li, li + 1, ..., ri by value di.
Greg wrote ... | instruction | 0 | 17,102 | 12 | 34,204 |
Tags: data structures, implementation
Correct Solution:
```
""" A. Greg and Array
"""
import sys
n, m, k = map(int, sys.stdin.readline().split())
arr = [x for x in map(int, sys.stdin.readline().split())]
ops = []
for x in range(m):
ops.append((map(int, sys.stdin.readline().split())))
c = [0] * m # hold number of o... | output | 1 | 17,102 | 12 | 34,205 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Professor Vasechkin is studying evolution of worms. Recently he put forward hypotheses that all worms evolve by division. There are n forms of worms. Worms of these forms have lengths a1, a2, ..., an. To prove his theory, professor needs to ... | instruction | 0 | 17,111 | 12 | 34,222 |
Tags: implementation
Correct Solution:
```
n = int(input())
g = list(map(int, input().split()))
doc = []
for i in g:
for j in g:
if j != i:
k = i - j
if k > 0:
if g.count(k) > 1:
if k in g:
doc.append(i)
... | output | 1 | 17,111 | 12 | 34,223 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Professor Vasechkin is studying evolution of worms. Recently he put forward hypotheses that all worms evolve by division. There are n forms of worms. Worms of these forms have lengths a1, a2, ..., an. To prove his theory, professor needs to ... | instruction | 0 | 17,112 | 12 | 34,224 |
Tags: implementation
Correct Solution:
```
n=int(input())
a=[[int(j),i] for i,j in enumerate(input().split(' '))]
b=sorted(a)[::-1]
s='-1'
for i in range(n-2):
for j in range(i+1,n-1):
for k in range(j+1,n):
if b[i][0]==b[j][0]+b[k][0]:
s=str(b[i][1]+1)+' '+str(b[j][1]+1)+' '+str... | output | 1 | 17,112 | 12 | 34,225 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Professor Vasechkin is studying evolution of worms. Recently he put forward hypotheses that all worms evolve by division. There are n forms of worms. Worms of these forms have lengths a1, a2, ..., an. To prove his theory, professor needs to ... | instruction | 0 | 17,113 | 12 | 34,226 |
Tags: implementation
Correct Solution:
```
n = int(input())
w = [int(i) for i in input().split()]
f = False
for i in range(n):
if f:
break
for j in range(n):
if f:
break
if i == j:
continue
for k in range(n):
if f:
break
... | output | 1 | 17,113 | 12 | 34,227 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Professor Vasechkin is studying evolution of worms. Recently he put forward hypotheses that all worms evolve by division. There are n forms of worms. Worms of these forms have lengths a1, a2, ..., an. To prove his theory, professor needs to ... | instruction | 0 | 17,114 | 12 | 34,228 |
Tags: implementation
Correct Solution:
```
n = int(input())
lst = list(map(int,input().split()))
l = len(lst)
found = False
for i in range(l):
for j in range(i+1,l):
for k in range(j+1,l):
if(lst[i] == lst[j]+lst[k] ):
print(f"{i+1} {j+1} {k+1}")
found = True
... | output | 1 | 17,114 | 12 | 34,229 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Professor Vasechkin is studying evolution of worms. Recently he put forward hypotheses that all worms evolve by division. There are n forms of worms. Worms of these forms have lengths a1, a2, ..., an. To prove his theory, professor needs to ... | instruction | 0 | 17,115 | 12 | 34,230 |
Tags: implementation
Correct Solution:
```
n = int(input())
arr = tuple(map(int, input().strip().split(' ')))
milon = {}
for i in range(n-1):
for j in range(i+1, n):
k = arr[i] + arr[j]
if k not in milon:
milon[k] = (i, j)
for i in range(n):
if arr[i] in milon:
v = milon[a... | output | 1 | 17,115 | 12 | 34,231 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Professor Vasechkin is studying evolution of worms. Recently he put forward hypotheses that all worms evolve by division. There are n forms of worms. Worms of these forms have lengths a1, a2, ..., an. To prove his theory, professor needs to ... | instruction | 0 | 17,116 | 12 | 34,232 |
Tags: implementation
Correct Solution:
```
n=int(input())
a=list(map(int,input().split()))
f=0
for i in range(0,n):
for j in range(0,n):
if(((a[i]+a[j]) in a)and i!=j):
print(a.index(a[i]+a[j])+1,i+1,j+1)
f=1
break
if(f==1):
break
if(f==0):
print(-1)
``` | output | 1 | 17,116 | 12 | 34,233 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Professor Vasechkin is studying evolution of worms. Recently he put forward hypotheses that all worms evolve by division. There are n forms of worms. Worms of these forms have lengths a1, a2, ..., an. To prove his theory, professor needs to ... | instruction | 0 | 17,117 | 12 | 34,234 |
Tags: implementation
Correct Solution:
```
n=int(input())
a=list(map(int,input().split()))
for i in range(n):
for j in range(n):
if a[i]+a[j] in a and i!=j!=a.index(a[i]+a[j]):
print(a.index(a[i]+a[j])+1,i+1,j+1)
exit()
print(-1)
``` | output | 1 | 17,117 | 12 | 34,235 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Professor Vasechkin is studying evolution of worms. Recently he put forward hypotheses that all worms evolve by division. There are n forms of worms. Worms of these forms have lengths a1, a2, ..., an. To prove his theory, professor needs to ... | instruction | 0 | 17,118 | 12 | 34,236 |
Tags: implementation
Correct Solution:
```
n=int(input())
l=list(map(int,input().split()))
f=0
for i in range(n):
for j in range(n):
if(l[i]-l[j] in l and l.index(l[i]-l[j])!=j):
f=1
print(i+1,j+1,l.index(l[i]-l[j])+1)
break
if(f==1):
break
if(f==0):
print... | output | 1 | 17,118 | 12 | 34,237 |
Provide a correct Python 3 solution for this coding contest problem.
You are given N integers; the i-th of them is A_i. Find the maximum possible sum of the absolute differences between the adjacent elements after arranging these integers in a row in any order you like.
Constraints
* 2 \leq N \leq 10^5
* 1 \leq A_i ... | instruction | 0 | 17,509 | 12 | 35,018 |
"Correct Solution:
```
from collections import deque
n = int(input())
a = [int(input()) for _ in range(n)]
a.sort()
que = deque(a)
right = que.pop()
left = que.popleft()
sums = right - left
while(bool(que)):
a = que.pop()
if not bool(que):
sums += max(abs(right-a),abs(left-a))
break
b = que.popleft()
su... | output | 1 | 17,509 | 12 | 35,019 |
Provide a correct Python 3 solution for this coding contest problem.
Write a program which manipulates a disjoint set S = {S1, S2, . . . , Sk}.
First of all, the program should read an integer n, then make a disjoint set where each element consists of 0, 1, ... n−1 respectively.
Next, the program should read an inte... | instruction | 0 | 17,661 | 12 | 35,322 |
"Correct Solution:
```
class DisjointSet:
def __init__(self, size):
self.rank = [0] * size
self.p = list(range(size))
def findSet(self, x):
if x != self.p[x]:
self.p[x] = self.findSet(self.p[x])
return self.p[x]
def same(self, x, y):
return self.findSet(... | output | 1 | 17,661 | 12 | 35,323 |
Provide a correct Python 3 solution for this coding contest problem.
Write a program which manipulates a disjoint set S = {S1, S2, . . . , Sk}.
First of all, the program should read an integer n, then make a disjoint set where each element consists of 0, 1, ... n−1 respectively.
Next, the program should read an inte... | instruction | 0 | 17,663 | 12 | 35,326 |
"Correct Solution:
```
def main():
n,q = [int(i) for i in input().split()]
#自分自身が親
par = [ i for i in range(n)]
#ランク
rank = [ 0 for i in range(n)]
#親を返す関数
def find(x):
if par[x] == x:
return x
else:
par[x] = find(par[x])
return par[x]
... | output | 1 | 17,663 | 12 | 35,327 |
Provide a correct Python 3 solution for this coding contest problem.
Write a program which manipulates a disjoint set S = {S1, S2, . . . , Sk}.
First of all, the program should read an integer n, then make a disjoint set where each element consists of 0, 1, ... n−1 respectively.
Next, the program should read an inte... | instruction | 0 | 17,667 | 12 | 35,334 |
"Correct Solution:
```
class DisjointSet():
def __init__(self, size):
self.rank = [None] * size
self.p = [None] * size
for i in range(size):
self.makeSet(i)
def makeSet(self, x):
self.p[x] = x
self.rank[x] = 0
def same(self,x,y):
return self.find... | output | 1 | 17,667 | 12 | 35,335 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Write a program which manipulates a disjoint set S = {S1, S2, . . . , Sk}.
First of all, the program should read an integer n, then make a disjoint set where each element consists of 0, 1, ... ... | instruction | 0 | 17,669 | 12 | 35,338 |
Yes | output | 1 | 17,669 | 12 | 35,339 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Salem gave you n sticks with integer positive lengths a_1, a_2, …, a_n.
For every stick, you can change its length to any other positive integer length (that is, either shrink or stretch it). The cost of changing the stick's length from a t... | instruction | 0 | 17,739 | 12 | 35,478 |
Tags: brute force, implementation
Correct Solution:
```
# -*- coding: utf-8 -*-
# @Time : 2019/1/20 20:06
# @Author : LunaFire
# @Email : gilgemesh2012@gmail.com
# @File : A. Salem and Sticks.py
def main():
n = int(input())
a = list(map(int, input().split()))
ret = [0, 100 * 1000]
for x in r... | output | 1 | 17,739 | 12 | 35,479 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Salem gave you n sticks with integer positive lengths a_1, a_2, …, a_n.
For every stick, you can change its length to any other positive integer length (that is, either shrink or stretch it). The cost of changing the stick's length from a t... | instruction | 0 | 17,740 | 12 | 35,480 |
Tags: brute force, implementation
Correct Solution:
```
n = int(input())
arr = list(map(int,input().split()))
x = max(arr)
ans = 99999999
for t in range(1,x+2):
sum = 0
for i in arr:
sum += min(abs(t-i),abs(t-i-1),abs(t-i+1))
if sum<ans:
ans = sum
T = t
pr... | output | 1 | 17,740 | 12 | 35,481 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Salem gave you n sticks with integer positive lengths a_1, a_2, …, a_n.
For every stick, you can change its length to any other positive integer length (that is, either shrink or stretch it). The cost of changing the stick's length from a t... | instruction | 0 | 17,741 | 12 | 35,482 |
Tags: brute force, implementation
Correct Solution:
```
n = int(input())
a = list(map(int,input().split()))
t = 0
mn = 1000000000
for i in range(1,100):
cur = 0
for j in range(n):
cur += max(0,abs(i-a[j])-1)
if cur < mn:
mn = cur
t = i
print(t,mn)
``` | output | 1 | 17,741 | 12 | 35,483 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Salem gave you n sticks with integer positive lengths a_1, a_2, …, a_n.
For every stick, you can change its length to any other positive integer length (that is, either shrink or stretch it). The cost of changing the stick's length from a t... | instruction | 0 | 17,742 | 12 | 35,484 |
Tags: brute force, implementation
Correct Solution:
```
n = int(input())
a = list(map(int,input().split()))
c,t = min((sum(max(0, abs(t-x)-1) for x in a), t) for t in range(1,max(a)+1))
print(t,c)
``` | output | 1 | 17,742 | 12 | 35,485 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Salem gave you n sticks with integer positive lengths a_1, a_2, …, a_n.
For every stick, you can change its length to any other positive integer length (that is, either shrink or stretch it). The cost of changing the stick's length from a t... | instruction | 0 | 17,743 | 12 | 35,486 |
Tags: brute force, implementation
Correct Solution:
```
import math
from statistics import median
if __name__ == '__main__':
n = int(input())
arr = list(map(int, input().split()))
min_changes = math.inf
min_mean = None
for mean in range(2, 100):
changes = 0
for a in arr:
... | output | 1 | 17,743 | 12 | 35,487 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Salem gave you n sticks with integer positive lengths a_1, a_2, …, a_n.
For every stick, you can change its length to any other positive integer length (that is, either shrink or stretch it). The cost of changing the stick's length from a t... | instruction | 0 | 17,744 | 12 | 35,488 |
Tags: brute force, implementation
Correct Solution:
```
import sys
import math
import itertools
import functools
import collections
import operator
def ii(): return int(input())
def mi(): return map(int, input().split())
def li(): return list(map(int, input().split()))
def lcm(a, b): return abs(a * b) // math.gcd(a, ... | output | 1 | 17,744 | 12 | 35,489 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Salem gave you n sticks with integer positive lengths a_1, a_2, …, a_n.
For every stick, you can change its length to any other positive integer length (that is, either shrink or stretch it). The cost of changing the stick's length from a t... | instruction | 0 | 17,745 | 12 | 35,490 |
Tags: brute force, implementation
Correct Solution:
```
n=int(input())
l=list(map(int,input().split()))
max1=99999
for i in range(1,101):
sum1=0
for j in range(len(l)):
if(l[j]>i):
sum1=sum1+abs(l[j]-i-1)
elif(l[j]<i):
sum1=sum1+abs(l[j]+1-i)
else:
sum1=sum1+0
if(max1>sum1):
max1=sum1
k=i
print... | output | 1 | 17,745 | 12 | 35,491 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Salem gave you n sticks with integer positive lengths a_1, a_2, …, a_n.
For every stick, you can change its length to any other positive integer length (that is, either shrink or stretch it). The cost of changing the stick's length from a t... | instruction | 0 | 17,746 | 12 | 35,492 |
Tags: brute force, implementation
Correct Solution:
```
n=int(input())
a=[int(i) for i in input().split()]
t=1
mins=1000000
while t<100:
su=0
for e in a:
if e>t:
su+=e-t-1
elif e<t:
su+=t-1-e
if su<mins:
mins=su
res=t
t+=1
print(res,mins)
``` | output | 1 | 17,746 | 12 | 35,493 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given sequence a1, a2, ..., an and m queries lj, rj (1 ≤ lj ≤ rj ≤ n). For each query you need to print the minimum distance between such pair of elements ax and ay (x ≠ y), that:
* both indexes of the elements lie within range [l... | instruction | 0 | 18,091 | 12 | 36,182 |
Tags: *special, data structures
Correct Solution:
```
import sys
class Fenwick(object):
def __init__(self, n):
self.n = n
self.a = [10**9 for i in range(n)]
self.w= 10**9
def zag(self, i, zn):
self.w= min(self.w, zn)
while i < self.n:
self.a[i] = min(self.a[i], zn)
i = (i | (i + 1)... | output | 1 | 18,091 | 12 | 36,183 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given a sequence a consisting of n integers. You may partition this sequence into two sequences b and c in such a way that every element belongs exactly to one of these sequences.
Let B be the sum of elements belonging to b, and C ... | instruction | 0 | 18,273 | 12 | 36,546 |
Tags: greedy
Correct Solution:
```
n = int(input())
arr1 = input()
arr2 = arr1.split()
arr = []
for i in arr2:
arr.append(int(i))
left = []
right = []
for i in arr:
if i <= 0:
right.append(i)
else:
left.append(i)
k1 = sum(left)
k2 = sum(right)
diff = k1 - k2
print(diff)
``` | output | 1 | 18,273 | 12 | 36,547 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given a sequence a consisting of n integers. You may partition this sequence into two sequences b and c in such a way that every element belongs exactly to one of these sequences.
Let B be the sum of elements belonging to b, and C ... | instruction | 0 | 18,274 | 12 | 36,548 |
Tags: greedy
Correct Solution:
```
def test_1():
n = list(map(int, input().split(' ')))[0]
data = list(map(int, input().split(' ')))
data_1 = sorted(data)
data_2 = []
data_3 = []
for i in range(n):
if data_1[i]<0:
data_2.append(data_1[i])
else:
data_3.appe... | output | 1 | 18,274 | 12 | 36,549 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given a sequence a consisting of n integers. You may partition this sequence into two sequences b and c in such a way that every element belongs exactly to one of these sequences.
Let B be the sum of elements belonging to b, and C ... | instruction | 0 | 18,275 | 12 | 36,550 |
Tags: greedy
Correct Solution:
```
n=int(input())
li=list(map(int,input().split()))
a=[]
b=[]
li.sort()
for i in li:
if i<=0:
a.append(i)
else:
b.append(i)
print(sum(b)-sum(a))
``` | output | 1 | 18,275 | 12 | 36,551 |
Provide a correct Python 3 solution for this coding contest problem.
For a dynamic array $A = \\{a_0, a_1, ...\\}$ of integers, perform a sequence of the following operations:
* pushBack($x$): add element $x$ at the end of $A$
* randomAccess($p$):print element $a_p$
* popBack(): delete the last element of $A$
$A$ ... | instruction | 0 | 18,549 | 12 | 37,098 |
"Correct Solution:
```
a=[]
q=int(input())
def pushback(a,x):
a.append(x)
return a
def randomaccess(a,p):
print(a[p])
def popback(a):
a.pop(len(a)-1)
return a
for i in range(q):
query=list(map(int,input().split()))
if query[0]==0:
a=pushback(a,query[1])
elif query[0]==1:
... | output | 1 | 18,549 | 12 | 37,099 |
Provide a correct Python 3 solution for this coding contest problem.
For a dynamic array $A = \\{a_0, a_1, ...\\}$ of integers, perform a sequence of the following operations:
* pushBack($x$): add element $x$ at the end of $A$
* randomAccess($p$):print element $a_p$
* popBack(): delete the last element of $A$
$A$ ... | instruction | 0 | 18,550 | 12 | 37,100 |
"Correct Solution:
```
def pushBack(ary, elem):
ary.append(elem)
def randomAccess(ary, idx):
print(ary[idx])
def popBack(ary):
ary.pop()
def main():
n = int(input())
ary = []
for i in range(n):
query = input()
if (query[0] == '0'):
elem = int(query[2:])
... | output | 1 | 18,550 | 12 | 37,101 |
Provide a correct Python 3 solution for this coding contest problem.
For a dynamic array $A = \\{a_0, a_1, ...\\}$ of integers, perform a sequence of the following operations:
* pushBack($x$): add element $x$ at the end of $A$
* randomAccess($p$):print element $a_p$
* popBack(): delete the last element of $A$
$A$ ... | instruction | 0 | 18,551 | 12 | 37,102 |
"Correct Solution:
```
n = int(input())
ans = []
for i in range(n):
lst = list(map(int,input().split()))
if lst[0] == 0:
ans.append(lst[1])
elif lst[0] == 1:
print(ans[lst[1]])
else:
del ans[-1]
``` | output | 1 | 18,551 | 12 | 37,103 |
Provide a correct Python 3 solution for this coding contest problem.
For a dynamic array $A = \\{a_0, a_1, ...\\}$ of integers, perform a sequence of the following operations:
* pushBack($x$): add element $x$ at the end of $A$
* randomAccess($p$):print element $a_p$
* popBack(): delete the last element of $A$
$A$ ... | instruction | 0 | 18,552 | 12 | 37,104 |
"Correct Solution:
```
A=[]
def pushBack(x):
A.append(x)
def randomAccess(x):
if len(A)==0:
return
print(A[x])
def popBack():
if len(A)==0:
return
A.pop()
q=int(input())
for i in range(q):
a=list(map(int,input().split()))
if a[0]==0:
pushBack(a[1])
elif a[0]==1:
randomAccess(a... | output | 1 | 18,552 | 12 | 37,105 |
Provide a correct Python 3 solution for this coding contest problem.
For a dynamic array $A = \\{a_0, a_1, ...\\}$ of integers, perform a sequence of the following operations:
* pushBack($x$): add element $x$ at the end of $A$
* randomAccess($p$):print element $a_p$
* popBack(): delete the last element of $A$
$A$ ... | instruction | 0 | 18,553 | 12 | 37,106 |
"Correct Solution:
```
q=int(input())
lis=[]
lq=[]
for i in range(q):
lq.append([int(x) for x in input().split(' ')])
for i in lq:
order=i[0]
if order==0:
lis.append(i[1])
elif order==1:
print(lis[i[1]])
elif order==2:
lis.pop(-1)
``` | output | 1 | 18,553 | 12 | 37,107 |
Provide a correct Python 3 solution for this coding contest problem.
For a dynamic array $A = \\{a_0, a_1, ...\\}$ of integers, perform a sequence of the following operations:
* pushBack($x$): add element $x$ at the end of $A$
* randomAccess($p$):print element $a_p$
* popBack(): delete the last element of $A$
$A$ ... | instruction | 0 | 18,554 | 12 | 37,108 |
"Correct Solution:
```
N= int(input())
P = []
for i in range(N):
a, *b = (int(b) for b in input().split())
b= b[0] if b else None
if a == 0:
P.append(b)
elif a == 1:
print(P[b])
else:
del P[-1]
``` | output | 1 | 18,554 | 12 | 37,109 |
Provide a correct Python 3 solution for this coding contest problem.
For a dynamic array $A = \\{a_0, a_1, ...\\}$ of integers, perform a sequence of the following operations:
* pushBack($x$): add element $x$ at the end of $A$
* randomAccess($p$):print element $a_p$
* popBack(): delete the last element of $A$
$A$ ... | instruction | 0 | 18,555 | 12 | 37,110 |
"Correct Solution:
```
stack = []
q = int(input())
for i in range(q):
op = list(map(int, input().split(' ')))
if op[0] == 0:
stack.append(op[1])
elif op[0] == 1:
print(stack[op[1]])
elif op[0] == 2:
stack.pop()
``` | output | 1 | 18,555 | 12 | 37,111 |
Provide a correct Python 3 solution for this coding contest problem.
For a dynamic array $A = \\{a_0, a_1, ...\\}$ of integers, perform a sequence of the following operations:
* pushBack($x$): add element $x$ at the end of $A$
* randomAccess($p$):print element $a_p$
* popBack(): delete the last element of $A$
$A$ ... | instruction | 0 | 18,556 | 12 | 37,112 |
"Correct Solution:
```
q=int(input())
query=[]
A=[]
for i in range(q):
query=list(map(int,input().split()))
if query[0]==0:
A.append(query[1])
elif query[0]==1:
print(A[query[1]])
else:
A.pop(-1)
``` | output | 1 | 18,556 | 12 | 37,113 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
For a dynamic array $A = \\{a_0, a_1, ...\\}$ of integers, perform a sequence of the following operations:
* pushBack($x$): add element $x$ at the end of $A$
* randomAccess($p$):print element $... | instruction | 0 | 18,560 | 12 | 37,120 |
Yes | output | 1 | 18,560 | 12 | 37,121 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
For a dynamic array $A = \\{a_0, a_1, ...\\}$ of integers, perform a sequence of the following operations:
* pushBack($x$): add element $x$ at the end of $A$
* randomAccess($p$):print element $... | instruction | 0 | 18,562 | 12 | 37,124 |
No | output | 1 | 18,562 | 12 | 37,125 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
For a dynamic array $A = \\{a_0, a_1, ...\\}$ of integers, perform a sequence of the following operations:
* pushBack($x$): add element $x$ at the end of $A$
* randomAccess($p$):print element $... | instruction | 0 | 18,564 | 12 | 37,128 |
No | output | 1 | 18,564 | 12 | 37,129 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given n arrays that can have different sizes. You also have a table with w columns and n rows. The i-th array is placed horizontally in the i-th row. You can slide each array within its row as long as it occupies several consecutive ... | instruction | 0 | 18,627 | 12 | 37,254 |
Tags: data structures, implementation
Correct Solution:
```
import sys
input = sys.stdin.readline
from collections import deque
n,w=[int(i) for i in input().rstrip('\n').split()]
arr=[]
tem=[]
for i in range(n):
t=[int(i) for i in input().rstrip('\n').split()]
tem.append(t[0])
arr.append(t[1:])
l=[0 for i i... | output | 1 | 18,627 | 12 | 37,255 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given n arrays that can have different sizes. You also have a table with w columns and n rows. The i-th array is placed horizontally in the i-th row. You can slide each array within its row as long as it occupies several consecutive ... | instruction | 0 | 18,628 | 12 | 37,256 |
Tags: data structures, implementation
Correct Solution:
```
import sys
input = sys.stdin.readline
from collections import deque
def slidemax(X, k):
q = deque([])
ret = []
for i in range(len(X)):
while q and q[-1][1] <= X[i]:
q.pop()
deque.append(q, (i+k, X[i]))
if q[0][0]... | output | 1 | 18,628 | 12 | 37,257 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given n arrays that can have different sizes. You also have a table with w columns and n rows. The i-th array is placed horizontally in the i-th row. You can slide each array within its ... | instruction | 0 | 18,629 | 12 | 37,258 |
No | output | 1 | 18,629 | 12 | 37,259 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given n arrays that can have different sizes. You also have a table with w columns and n rows. The i-th array is placed horizontally in the i-th row. You can slide each array within its ... | instruction | 0 | 18,630 | 12 | 37,260 |
No | output | 1 | 18,630 | 12 | 37,261 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given n arrays that can have different sizes. You also have a table with w columns and n rows. The i-th array is placed horizontally in the i-th row. You can slide each array within its ... | instruction | 0 | 18,631 | 12 | 37,262 |
No | output | 1 | 18,631 | 12 | 37,263 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given n arrays that can have different sizes. You also have a table with w columns and n rows. The i-th array is placed horizontally in the i-th row. You can slide each array within its ... | instruction | 0 | 18,632 | 12 | 37,264 |
No | output | 1 | 18,632 | 12 | 37,265 |
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